<?php  if (!defined('BASEPATH')) exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package        CodeIgniter
 * @author        ExpressionEngine Dev Team
 * @copyright    Copyright (c) 2008 - 2011, EllisLab, Inc.
 * @license        http://codeigniter.com/user_guide/license.html
 * @link        http://codeigniter.com
 * @since        Version 1.0
 * @filesource
 */

// ------------------------------------------------------------------------

/**
 * CodeIgniter Array Helpers
 *
 * @package        CodeIgniter
 * @subpackage    Helpers
 * @category    Helpers
 * @author        ExpressionEngine Dev Team
 * @link        http://codeigniter.com/user_guide/helpers/array_helper.html
 */

// ------------------------------------------------------------------------

/**
 * Element
 *
 * Lets you determine whether an array index is set and whether it has a value.
 * If the element is empty it returns FALSE (or whatever you specify as the default value.)
 *
 * @access    public
 * @param    string
 * @param    array
 * @param    mixed
 * @return    mixed    depends on what the array contains
 */
if (!function_exists('element')) {
    function element($item, $array, $default = FALSE)
    {
        if (!isset($array[$item]) OR $array[$item] == "") {
            return $default;
        }

        return $array[$item];
    }
}

// ------------------------------------------------------------------------

/**
 * Random Element - Takes an array as input and returns a random element
 *
 * @access    public
 * @param    array
 * @return    mixed    depends on what the array contains
 */
if (!function_exists('random_element')) {
    function random_element($array)
    {
        if (!is_array($array)) {
            return $array;
        }

        return $array[array_rand($array)];
    }
}

// --------------------------------------------------------------------

/**
 * Elements
 *
 * Returns only the array items specified.  Will return a default value if
 * it is not set.
 *
 * @access    public
 * @param    array
 * @param    array
 * @param    mixed
 * @return    mixed    depends on what the array contains
 */
if (!function_exists('elements')) {
    function elements($items, $array, $default = FALSE)
    {
        $return = array();

        if (!is_array($items)) {
            $items = array($items);
        }

        foreach ($items as $item) {
            if (isset($array[$item])) {
                $return[$item] = $array[$item];
            } else {
                $return[$item] = $default;
            }
        }

        return $return;
    }
}

/* End of file array_helper.php */
/* Location: ./system/helpers/array_helper.php */